Mult Block
The Mult Block allows the user to multiply a great number of variables in order to use the result
The Mult Block can be found in the B-Line app, after creating a new program
Properties
The only properties that the add block has are the input fields (In1, In2...), that will appear as the user will click the add sign 
How to use
The user must go to bLine Logic
In there he creates a program (or edits one) depending on his need (more information here ).
In the Blocks menu the user can find all the blocks that he can use
Search for the sub bock in the right menu that opens
Then drags the block over a main block like SET or IF